LÜTFI İNCIKABI, ABDULLAH BIBER, MUJDAT TAKICAK, SEMIHA BAYAM. An Investigation of Seventh Grade Students’ Performances on Conceptual, Procedural and Graphical Problems Regarding Circles . Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 6, n. 1, p. 01–17, 2015. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/76. Acesso em: 2 may. 2024.